PPRuNe Forums - CPU running at 100%

PPRuNe Forums (https://www.pprune.org/)

- Computer/Internet Issues & Troubleshooting (https://www.pprune.org/computer-internet-issues-troubleshooting-46/)

- - CPU running at 100% (https://www.pprune.org/computer-internet-issues-troubleshooting/380739-cpu-running-100-a.html)

Thank you gentlemen (I assume you are all boys).

I retired to the pub an hour ago in a fit of depression (whole day spent on this - no other work and office operating at a snails pace). Will play with those in the early hours rather than Stella influenced and report back either way.

A complete rebuild looks likely !

PS - my original assumption was Malware - but can find no trace (and whole issue moving beyond my knowledge level)

Quote:

It sounds very much to me like the modus operandi of malware

I think it would be an extraordinary coincidence for malware to have occurred immediately after a hard-disk crash!

Why complicate the issue? Occam's razor applies here, I think.

SD

Quote:

I think it would be an extraordinary coincidence for malware to have occurred immediately after a hard-disk crash!

Why complicate the issue? Occam's razor applies here, I think.

It's a server. It's been running reliably for ages until a reason comes to warrant a reboot. Code entered into HKLM/Software/Microsoft/Windows/CurrentVersion/Run is then initiated. Server starts virus payload and runs like a dog.

As indicated by the OP, he is considering a rebuild as an alternative. Therefore, an hour's work with an antimalware tool rather than that is a very cheap alternative, n'est ce pas?

9 months later !!!

Everything failed - reduced use of machine to holding email archive and local back-ups before backing up to offsite and confined whole issue to the 'too difficult file'.

Pending imminent visit of grandaughter (who was permitted to use machine under her own limited access user name only) who has winged about non-existance of "her computer" and kept scrounging one of our individual machine, I threw all work out yesterday and have spent last 36 hours trying to solve.

With the aid of google and mucho patience - identified a corrupt USB driver - disabled it and heh presto - machine flies.

Am posting to 1) to brag 2) to suggest anyone suffering from 100% CPU problems should look at working through the non-vital hardware list disabling one at a time - refer to these excellent articles/threads for further explanation .....

Svchost.exe Using 100% CPU Resources in Vista – Identify Causing Services My Digital Life

100% CPU Usage by NT Kernel & System - The Win Forums

Thanks to all for their help